feat:增加functionKey 参数

lib/clx_flutter_message.dart

@@ -38,7 +38,7 @@ abstract class BaseMessageConfig
     var params = {
       'connectId': connectId,
       'productCode': messageConfig.productCode,
-      'functionKey': messageConfig.inAppAccessKey,
+      'functionKey': messageConfig.functionKey,
       'userKey': userNo,
       'companyKey': messageConfig.companyNo
     };
@@ -167,6 +167,10 @@ abstract class BaseMessageConfig
     if (StringUtil.isEmpty(messageConfig.inAppAccessKey)) {
       return "inAppAccessKey不能为空";
     }
+    if (StringUtil.isEmpty(messageConfig.functionKey)) {
+      return "functionKey不能为空";
+    }
+
     if (StringUtil.isEmpty(messageConfig.productCode)) {
       return "productCode不能为空";
     }

lib/core/model/message_config.dart

@@ -8,6 +8,8 @@ class MessageConfig {
 
   String inAppAccessKey = "";
 
+  String functionKey = "";
+
   String companyNo = "";
 
   String productCode = "";